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Finding the Fourth Proportional to 74,560.69, 111,760.17 and 37,148.68

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Solution

The fourth proportional to 74,560.69, 111,760.17 and 37,148.68 is: 55,682.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,560.69 : 111,760.17 = 37,148.68 : x
  2. Step 2: Convert to fraction form
    74,560.69/111,760.17 = 37,148.68/x
  3. Step 3: Cross multiply
    74,560.69x = 111,760.17 × 37,148.68
  4. Step 4: Simplify right side
    74,560.69x = 4,151,742,792.08
  5. Step 5: Solve for x
    x = 4,151,742,792.08/74,560.69
  6. Step 6: Final answer
    x = 55,682.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.